A、could not be summated.
B、appear after the former action potential initiates contraction.
C、the amplitude will incease.
D、the amplitude will decrease.
E、the frequency will decrease.
第1题
A、appear after the former action potential initiates contraction.
B、could not be summated.
C、the amplitude will incease.
D、the amplitude will decrease.
E、the frequency will decrease.
第2题
A、activation of the voltage dependent sodium channel.
B、the amplitued of the potential is proportional to the strength of stimulation.
C、the amplitued of the potential is reversely proportional to the strength of stimulation
D、summation of two or more response.
E、refractory period.
第3题
A、the amplitued of the potential is proportional to the strength of stimulation.
B、the amplitued of the potential is reversely proportional to the strength of stimulation
C、summation of two or more response.
D、refractory period.
E、activation of the voltage dependent sodium channel.
第4题
A、It increases contractions and activity of the fallopian tube smooth muscle and cilia
B、It induces thick, sticky mucus in the cervix.
C、It inhibits the milk-inducing effects of prolactin.
D、It increases body temperature.
E、It exerts negative feedback on the hypothalamus and anterior pituitary
第5题
第6题
A、the active tension of the muscle will increae.
B、the latency between the action potential initiation and the muscle shorting will be longer.
C、the velocity of the muscle shorten will be decreasd.
D、the amplitude of the muscle shorten will be increased.
第7题
A、the amplitude of the muscle shorten will be increased.
B、the active tension of the muscle will increae.
C、the latency between the action potential initiation and the muscle shorting will be longer.
D、the velocity of the muscle shorten will be decreasd.
第8题
A、Phase 1
B、Phase 2
C、Phase 3
D、Phase 4
第9题
A、Phase 3
B、Phase 1
C、Phase 2
D、Phase 4
第10题
A、The duration of phase 2 repolarization decreases
B、The amplitude of phase 0 depolarization reduces
C、The duration of phase 1 repolarization decreases
D、The duration of phase 3 repolarization decreases
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